Fusté, Enric, E. Obon, and L. Olid. 2013. “Hand-Reared Common Swifts (Apus Apus) in a Wildlife Rehabilitation Centre: Assessment of Growth Rates Using Different Diets”. Journal of Zoo and Aquarium Research 1 (2):61-68. https://doi.org/10.19227/jzar.v1i2.33.